Note: Descriptions are shown in the official language in which they were submitted.
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BED FRAME AND RELEASABLE CO~PLING EMPLOYED THEREIN
Background of the Invention
Low, rectangular platform type beds have come into
vogue over the last few years, in which the bed frame con-
stitutes a box-like assembly having a planar solid upper
surface upon wich a box spring and overlying mattress rest.
Such beds may include conventional raised headboards and
footboards at opposite ends of the bed. Additionally, such
bed structures may include slidable drawers which slide into
the bed frame and under the parts supporting the box spring
and mattress to permit storage of clothing and the like
within the slidable drawers.
It is a primary object of the present invention to
provide such platform or storage bed which is of knockdown
form and which involves the utili~ation of latch-type
couplings for latching the components into a rather rigid
assembly capable of supporting induced loads, which incor-
porates an improved system for supporting a plurality of
slidable drawers to each side of the bed longitudinally of
the centerline, which permits the platform or storage bed to
be set up or disassembled in a matter of minutes, which is
of low cost, and which has good eye appeal.
It is a further object of the present invention to
provide an improved overcenter latch coupling for detachably
clamping a channel member at its end to an abutting support
member and which creates a highly rigid coupling between the
channel member and that confronting support member.
Summary of the Invention
The invention in part is directed to a knockdown bed
which comprises opposed, longitudinally separated end boards,
laterally opposed side boards, and a plurality oE U~shaped
channel members of a length approximating the length of the
end boards for connection of the opposed end boards and side
boards in a rigid, rectangular frame assembly. Each of the
U-shaped channel members mounts an overcenter latch assembly
at opposite ends of each channel member for detachably
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coupling the channel member ends to receiver assemblies
fixedly mounted to and at longitudinally spaced positions
along at least the top of the bed opposed side boards to form
at least one upper or top row of said receivers. A channel
member is fixed to one side to respective facing cides of
the bed end boards, at a height corresponding to the position
of the receiver assmblies on the side boards. The channel
members include laterally projecting flanges on each side
thereof defining C-shaped slots to each side thereof. Thin,
rectangular, hollow core panels are slidab]y inserted within
the facing C-shaped slots of adjacent channel members to form
a planar box spring and mattress support across the top of
the bed longitudinally from one end board to the other~and
laterally from one side board to the other.
The U-shaped channel members coupled to respective ones
of the at least one top row of receiver assemblies may be
inverted with their open ends facing downwardly and with the
channel member bottoms nearly flush with the panels. The
side boards each may comprise an open ladder frame of rec-
tangular configuration including vertical risers joining top
and bottom board members, defining rectangular openings
thereln. The U~shaped channel members may form a second row
of channel members detachably mounted via latch assemblies to
receiver assemblies fixedly mounted to the inside of the
side boards at spaced longitudinal positions along the bottom
- board of the ladder frame corresponding to receiver assem-
blies of the top board, which second row of receiver assem-
blies are inverted with respect to those of the first row.
The lower row of U-shaped channel members open upwardly such
that the channel members of both rows form four corner slides
for a plurality of rectangular upwardly open drawers inserted
through the openings of the ladder frame with these corners
engaging the slides, thereby permitting the drawers to
function as openable and closable storage containers for the
knockdown bed.
The knockdown bed may include a platform base assembly
comprising base assembly end boards and side boards joined
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along respective ends to form a vertical open rectangular
base platform. The bed end boards and side boards are
mounted, respectively, to the platform base assembly. The
end boards and side boards may act as extensions thereof.
The end boards each have a channel member fixed to a facing
side and extend horizontally the length thereof at a posi-
tion above the top of the platform base assembly. Others
of the plurality of U-shaped channel members are detachably
mounted via the latch assemblies to the receiver assemblies
on the bed side boards at positions above the top of the
platform base member side boards. Each latch assembly pro-
vides an overcenter coupling function to couple the U-shaped
channel members at a given end to an opposed, abutting side
board. Each coupling receiver assembly includes a U-shaped
chan~lel guide member sized and configured to fit into the
interior of the channel member at its open end and is
mounted to the face of the side board. ~ vertical plate-
like catch is mounted to the interlor of the U-shaped guide
member and terminates at its upper end in a C-shaped hook
portion whose open side faces away from the channel member.
The overcenter coupling is effected by a latch assembly
which comprises an inverted U-shaped saddle member including
a horizontal base and legs depending from the base at
opposite sides thereof. The legs terminate in bosses which
project outwardly of the legs to opposite sides of the saddle
member. The bosses are received within holes of the U-shaped
channel members for plvoting of the saddle member about the
axis of the bosses. An integral finger pro;ects upwardly
- from and at right angles to the base of the saddle member.
A U-shaped wire latch bar is pivoted at its free ends to the
base and projects outwardly from the base. It is pivotable
between positions in line with the base and at generally
right angles thereto and parallel to the finger. The
U~-shaped wire latch bar is of a length and the holes for
rotatably mounting the bosses are positioned remote from the
end of the channel member such that the U-shaped wire latch~,
bar may be positioned with its center engaging the C-shaped
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hook portion of the plate-like catch with the finger at
right angles to the U-shaped wire latch bar and parallel to
the side board bearing the receiver assembly. With the
finger deflected from raised vertical position to a
generally horizontal position, the U-shaped wire latch
bar pivots overcenter, i.e., across the pivot axis for
the bosses, causing the end of the channel bar to abut
the side board and capture the channel guide internally
of the U-shaped channel member and is rigidly coupled thereto
via the overcenter action of the coupling latch bar.
The invention, in another aspect, is directed to the
overcenter coupling comprised of the receiver assembly and
the latch assembly for mounting to a side board and channel
member, or their equivalents.
According therefore to a further aspect, the invention
relates to an overcenter latch coupling for effecting a
detachable coupling between a U-shaped channel member at
its end to an abutting end board extending transversely
across the end of the U-shaped channel member, the over-
center latch coupling comprising: a receiver assembly for
fixedly mounting to the board, an overcenter latch assembly
carried by the U-shaped channel member at the end thereof,
the receiver assembly comprising a U-shaped channel member
guide sized and configured to fit into the interior of the
U-shaped channel member at its open end in surface contact
therewith, a vertical catch plate mounted to the interior
of the U-shaped channel member guide and terminating at an
upper end in a C-shaped hook portion facing away from the
engageable channel member, each overcenter latch assembly
comprising an inverted U-shaped saddle member including a
horizontal base, legs depending from the saddle member base
at opposite sides thereof, the legs including circular bosses
projecting laterally outwardly of the legs to opposite sides
of the saddle member for mounting within the U-shaped channel
member to effect pivoting of the saddle member about the axis
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4a
of the bosses, an integral finger projecting upwardly from
and generally at right angles to the base of the saddle
member, a U-shaped wire latch bar pivotably mounted at its
free ends to the saddle member base and projecting outwardly
therefrom, and being pivotable from a position in line with
the base to one generally at right angles thereto, parallel
to the finger, and wherein the U-shaped wire latch bar is of
a length such that with the bosses rotatably mounting the
saddle member, the U-shaped wire latch bar may be moved into
engaging contact with the C-shaped hook portion of the catch
plate; whereby, deflecting of the finger from a raised
vertical position to a generally horizontal in line position,
the U-shaped wire latch bar is pivoted overcenter across the
saddle member pivot axis defined by the bosses, causing the
end of the channel member to abut the board to capture the
channel member guide internally of the U-shaped channel member
and to thereby establish a rigid coupling via the overcenter
action sf the coupling latch bar between the channel member
at its end and the face of the board.
Brief Description of the Drawings
Figure 1 is a perspective view of a knockdown storage
bed forming one embodiment of the present invention.
Figure 2 is an exploded, perspective view of the bed
of Figure 1 and illustrating the components of the bed and
the manner of bed assembly and disassembly.
Figure 3 is a perspective view of a receiver assembly
employed in the bed of Figures 1 and 2 and Eorming one
component of an overce~ter coupling, which coupling forms
a further aspect of the present invention.
Figure ~ is an end view of one of the U-shaped channel
members employed in the construction of the bed of Figures 1
and 2 and illustrating the latch assembly forming the other
component of the overcenter coupling.
Figure 5 is a top plan view of the latch assembly of
the overcenter coupling.
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Figure 6 is a longitudinal sectional view of a portion
of one of the channel bars of the bed of Figures 1 and 2
showing the nature and operation of the overcenter coupling
for effecting a rigid connection between the ends of the
channel members and the side boards of the bed prior to
effecting the coupling.
Figure 7 is a similar vertical sectional view to that
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of Figure 6, at the termination of coupling with the latch
bar pivoted overcenter relative to the saddle member of the
latch assembly.
Figure 8 is a longitudinal vertical sectional view of a
portion of the bed of Figure 1 showing the mounting of the
hollow core panels to the extrusion channel members forming
components thereof.
Figure 9 is an exploded perspective view of one of the
drawers of the bed of Figure 1 with a hollow core panel being
applied thereto as a cover therefor when the drawer and
hollow core panel are separated ~rom the bed subsequent to
bed disassembly.
Figure 10 is an exploded perspective view of a platform
bed forming yet a further embodiment of the present inven-
tion.
Description of the Preferred Embodiments
Referring initially to Figures 1 and 2, it is seen thatthe knockdown bed forming a principal aspect of the present
invention and indicated generally at 10 is what is termed in
the art as a "storage bed". The bed 10 is comprised of a
headboard 12, a footboard 1~ (both of which may be termed
"end boards"), and a pair of opposed, laterally spaced side
boards 16. The components 12, 14 and 16 are detachably
coupled or connected -together in knockdown fashion via a
plurality of generally U-shaped channel members 18 which are
detachably coupled at their ends to opposed side boards 16
in a manner to be described hereinafter. In the embodiment
shown, the side boards 16 take the form of ladder frames,
within which are slidably inserted suitably sized and con-
figured rectangular drawers 20.
Referring particularly to Figure 2, the side boards 16in the form of ladder frames are comprised of a narrow bottom
board 24, a similarly sized narrow top board 26, and being
separated but joined by vertical end risers 28 and 309 along
with a pair of intermediate vertical risers 32. ~,embers 24,
26, 28, 30 and 32 may be wooden as may the end boards for t~e
bed 10, specifically headboard 12 and footboard 14. A
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further important aspect of the invention is the utilization
of a number of overcenter couplings ind cated generally at
35 and each co sisting of an overcenter latch assembly indi-
cated generally at 34 which are mounted to respective ends
of each of the U-shaped channel member 18, and receiver
assemblies 36 which are fixed to side boards 16 and specif-
ically in two rows along the top and bottom boards 26, 24,
respectively, of the ladder frame type side boards 16 in
Figure 2 at positions corresponding to the vertical risers.
Further, as will be seen hereinafter, it is important
that at least one channel member 18 be mounted along its
sides to the facing surfaces 12a, 14a of the headboard 12
and footboard 14, respectively, for both beds forming ~
illustrated embodiments of the present invention. In the
embodiment of Figures 1 and 2, a channel member 18 extends
along the bottom edge of both the headboard 12 and footboard
14, and one at a verticaly raised position thereto, on both
the headboard and the footboard corresponding generally to
the height of the top board 26 of each of the ladder frame
type side boards 16. The channel members 18 extend
horizontal and parallel to each other, being side-mounted to
the headboard 12 and footboard 14, with the upper U-shaped
channel member 18 being inverted such that it opens down-
wardly while the lower U-shaped channel member opens
upwardly.
As may be appreciated, the channel members 18 not only
constitute the detachable elements for linking the end
boards to the side boards, but they additionally perform the
function of slidably receiving hollow core panels 42 of
rectangular plan configuration which are sized to channel
member grooves or slots within opposed sides of the channel
members 18. Thus, the assembly of the hollow core panels 42
and the channel members 18 Lorm a rigid planar box spring
and mat~ress support. Additionally, ehese channel members
18 define four corner slides for slidably receiving the
corners of the rectangular drawers 20 to permit their easy-
entry and removal from openings 22 formed within the latter
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.
frame type side boards 16 to each side of bed 10.
Further, by reference to Figure 2, it is seen that
the bed is completed by a vertical spine panel 40 which is
provided with suitable notches 41 along its length9 both at
the top and at the bottom, within which mount the channel
members 18 to further facilitate the creation of a knockdown
storage bed of high rigidity, while permitting the slidable
mounting of si~ completely removable drawers 20 within the
bed frame in the illustrated embodiment of Figures 1 and 2.
Referring to Figures 3 through 7, inclusive, a better
understanding and appreciation of the overcenter coupling
for coupling the channel member ends to the side panels of
bed 10 may be appreciated. In Figure 3, the bottom boàrd 24
of the latter frame type end panel 16 has mounted on its
interior surface 24a, one of the receiver assemblies 36.
Receiver assembly 36 is comprised of a plastic catch plate
mount and channel member guide 37 which may be partially
mounted by way of screw 64 projecting through hole 52 to
face 24a of the side panel member 24. The catch plate mount
and channel member guide 37 is of generally U-shaped plan
configuration including a front wall 46, bearing hole 52,
and extending vertically upward from a base 47 and being
integrated with opposed vertical side walls 48. The plastic
molded guide 37 has its side walls 48 terminating adjacent
base 47 in laterally projecting offset portions 54 which, as
seen in Figure 4, are receivable within the corresponding
offset recesses formed within the lightweight aluminum metal
extrusion channel member 18. Further, the f ront wall 46 is
provided with a rectangular hole 50 to insure access for a
U-bar of the latch assembly 34. The catch plate, indicated
generally at 44, is formed from a piece of sheet metal stock
and includes a flat base portion 58 bearing paired holes 62.
A further pair of screws 64 penetrate holes 62 and aligned
holes (not shown) within the front wall 46 and bottom board
24, thereby facilitating both the mount of the catch plate 44
and the plastic catch plate mount and channel guide member 37
to board 24. The upper end of base plate 58 terminates in a
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C-shaped hook portion 60 whose hook opening faces opening 50
and the face 24a of side board member 24. The hook portion
60, while facing away from the channel member 189 is bent or
curved outwardly away from the plane of the base 58 so as to
provide a gap 61, Figure 6, to permit the center of a latch
bar 110 to pass over the hook portion 60 and to be retained
thereby during coupling, as will be appreciated hereinafter.
The second element of each overcenter coupling 35
comprises the latch assembly 34. It is formed of two com-
ponents 5 a saddle member indicated generally at 84 and
pivotable latch bar indicated generally at 110. The saddle
member 84 is pivotably mounted to the U-shaped channel
member l8. In that respect, the channel member 18, Figure
4, comprises an aluminum or other similarly shaped material
and is constituted integrally in cross section, by a base 66
from which rises, near opposite ends, a pair of vertical
walls 68. ~Jalls 68 have laterally inward offset portions 70
which rise vertically upward therefrom and form recesses 76
to each side of the channel member 18 to the interior of the
ex~rusion. Within the offset portions 70 of those walls,
there is provided a very shallow groove as at 78 on each
side of the channel member 18 which face each other and
within which, at longitudinally spaced positions, are formed
circular openings or holes 80. These holes 80 may extend at
spaced longitudinal positions over the length of the channel
members. The holes 80 proximate to the opposite ends of the
channel members function to pivotably mount the saddle
members 84 of respective latch assemblies 34. The lateral
- offsets 70 for each of the side walls 68 of the channel
member 18 carry integral right angle outwardly directed
flanges 74 which cooperate with flanges 66a as projections
of the base 66 to define rectangular channels or grooves 72
to each side of the channel member 18. Grooves 72 receive
edges of the hollow core panels 42 which are of a thickness
generally equal to the distance spanning the insides of
channel member flanges 66a, 74. Further, each of the
flanges 74 define, with the terminal ends 70a of the side
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walls 68 of ehe channel members 18, drawer slides 75 for
guiding the corners of the rectangular form drawers 22 which
are inserted within each of the ladder frame type side
boards 16 of bed lO onto the slides 75.
As perhaps may be best seen in Figures 6 and 7, each
saddle 84 is comprised of a flat base portion 94 from which
depends a pair of legs 92 to each side thereof and which are
integrated to a right angle finger 88 via laterally opposed
side walls 96. Projecting outwardly of legs 92 of the saddle
member 84 are a pair of short length, circular bosses 86
which have a diameter slightly less than the diameter of
holes 80, receiving the bosses, within the channel member
side wall extension offset portions 70. The bosses 86~define
a pivot axis 87 at their centers for the saddle member 84,
The saddle member 84 may constitute a plastic molded element,
and the base 94, in its integration to side walls 96, is
provided with short height frame members lO0, 102, Figure 5,
defining paired L-shaped slots 104 within which is positioned
ends ll~a of a metal wire latch bar 110 of generally U-shaped
configuration whose arms 114 extend from a center portion
112. Center portion 112 is of a length somewhat in excess of
the width of hook 60 of the catch plate 44. The length of
the latch bar arms 114 is correlated to the position of
terminal ends 114a of the latch bar arms 114 and the pivot
axis of the saddle members 84 supporting the same such that
with finger 88 in vertically upright position, or tilted
slightly towards side board member 24, the central portion
112 of the bar latch 110 passes freely over the hook 60,
falls through the gap 61 between the hook 60 and face 24a
of side board member 24, to be held by the catch plate 44.
In this action, the saddle member 84 pivots counterclockwise
as per arrow 109, Figure 6, and the latch bar 110 moves
towards the catch plate 44. In fact, the central portion 112
of the latch bar 110 may be extended beyond the end 18a of
the channel ~ember 18,
To effect cOnnection of an end of a channel member 18-
to a receiver assembly 37~ mounted to the face of the side
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-
board 16, and to effect a rigid coupling between that end of
the channel member 18 and the side board 16, during engage-
ment of the latch bar 110 with catch plate 44, the U-shaped
channel member end 18a moves onto and envelopes the plastic
catch plate mount and channel member guide 37, during which
the offset projections 54 of the side walls 48 of guide 37
are received within recesses 76 at opposite sides of the
channel member 18. This locates the end of channel member
18 relative to catch plate 44. The finger 88 of the latch
assembly 34 saddle member 84 is then pivoted clockwise as
evidenced by arrow 120, Figure 7, to cause the saddle member
84 to pivot about its pivot axis 87, forcing the bar latch
110 to swing through an angle in a clockwise direction as
shown by arrow 1~2 to a position such that the plane of the
arms 114 latch bar 110 passes through the pivot axis 87
defined by bosses 86 of the saddle member 84, which resists
uncoupling due to the fact that any reverse movement tends
to drive the latch bar backwards through the pi.vot axis 87
of the saddle member 84, which is highly resisted by the
elements in their coupled state.
Further, as may be appreciated by reference to Figure 7,
a series of screws as at 124 pass through the additional
circular holes 80 within one of the walls 68 of the channel
member 18 such that two of the channel members 18 may be
appropriately side mounted to the interior surface 12a of
headboard 12 and lla of footboard 14, respectively, of the
knockdown bed 10, Figures 1 and 2, thereby facilitating bed
assembly and disassembly in a manner of minutes.
It should also be noted that slots 104 extend vertically
over an appreciable distance within saddle member 84 to per-
mit a free swing of the latch bar 110 as indicated by double
headed arrow 105, Figure 6, to ensure the passage of the
central portion 112 of the latch bar 110 over hook portion
60 of the catch plate 44.
As may be appreciated by reference to Figure 7, in
releasing the overcenter coupling 35, finger 88 of saddle
member 84 is forced to move counterclockwise swinging latch
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bar 110 across the pivot axis 87 of the saddle Member 84,at which point release occurs between the latch bar 110 and
catch plate 44. This permits she extrusion channel member
18 to be moved away from the plastic catch plate mount and
channel ~ember guide 37, with ehe latch bar 110 freed from
the cat.h plate hook portion 60 by simply lifting the
central portion 112 of that member through gap 61 between
the tip of the hook portion 60 and face 24a of the side
board ladder frame member 24 (or its equivalent).
Referring next to Figure 8, it is seen that ide wall
offset portion 70 of certain of the channel members abut
the headboard 12 an-d footboard 14, respectively. The nature
and makeup of the hollow core panels 42, their slidable
mounting to and between ad;acent channel members lB and
finally the nature in which the drawers 20 are fitted to and
between upper and lower channel member 18 func~ioning as
drawer guides may be further seen. Specifically9each of the
hollow core panels 42 ls comprised of an outer framework of
wood beams as at 126 sanduiched by outer sheets 128 of
plywood or the like and being bonded thereto by means of
adhesive at their contacting surfaces with the beams 126.
This creates a hollow interior at 130, making the panels 42
lightweight but capable of supporting the load of the box
spring and mattress and person or persons (all not shown)
occupying the bed 10. Further, the creation of the slots or
grooves 72 by the base projection 66a of each extrusion 18
and flanges 74, sized to the thickness of the panels 42 may
be appreciated. Additionally, the terminal ends 70a of the
offset portion 70 of the side walls of the extrusion channel
members 18 combined with right angle flanges 74 define
corner slides 75 for the slidably inserted and removed
drawers 20. The multiple functions of the extrusion channel
members 18 are integrated in a simplified and low cost
manner, creating a rigid bed whose rigidity is maintained,
while at the same time facilitating storage of materials,
i.e., clothing and the like, within the various ~penable
drawers 20 beneath the hollow core panels 42.
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Figure 9 shows one of the drawers 20 after removal
from bed 10 or when the bed is disassembled, permitting a
hollow core panel 42 to be locked on top of a given drawer
to form a closed container, the hollow core panels 42 being
sized and configured to that of the open drawer 20 to permit
this action. The utility of the bed is therefore enhanced
in the embodiment of Figure 1.
Referring next to Figure 10, a further embodiment of
the present invention is illustraed in which the components
of a "platform" bed, indicated generally at 10', have prime
designations relative to the bed 10 of Figures 1 and 2.
However, in this case, there are no removable drawers, nor
are there upper and lower rows of receiver assemblies 36
mounted to opposite sides of the bed frame structure. In
this embodiment, a platform base structure or assembly,
indicated generally at 132, is comprised of platform base
assembly end boards 134 which are identically sized and
configured having rectangular notches 136 at both Pnds, at
the top edges thereof, as well as laterally opposed platform
base assembly side boards 138. These boards are joined at
their abutting side edges by releasable couplings ~not
shown~. As typical in platform beds, the platform assembly
132 is of a shorter length and width than the box spring and
mattress (not shown) supported thereby.
In that respect, the pla~form base assembly 132 further
includes wood beams 144 of square cross section, of a length
in excess of the length of side boards 38, being rigidly
connected to the inside of the platform base assembly side
boards, at the top, by way of suitable screws or the like
(not shown), such that the ends 144a of the bea~s project
beyond the edges 138a of respective base assembly side
boards 138.
~ ounted within the upper face oE the beams 144 are a
plurality of longitudinally spaced pins or dowels 146 at
their ends, which are received within spaced vertical holes
(not shown) within the bottom of the two outside channel
members which mount the end boards 12', 14' vertically to
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the upper face 144b of beams 144, at ends 1~4a thereof. It
should be noted that the cross section of the beams 144
matches that of the rectangular notches 136 within end
boards 134, receiving those beams. The basic framing for
the platform bed 10' is completed by the utilization of bed
side boards 16'. In most respects, the platform bed 10' is
very similar to that of the storage bed 10 in Figures 1 and
2. In this case, four channel members 18', identically
configured and employed in the manner of the first embodi-
ment, are employed in the platform bed 10'. In this case,one of the channel members 18' is screwed or otherwise
fixedly mounted to the inside surface of headboard 12' and
the other to the inside surface of footboard 14' facing the
head end of the bed. The chann-el members 18' incorporate at
their ends latch assemblies 34', while being fixedly mounted
to the inside surface of side boards 16' facing each other.
At the same level are longitudinally spaced receiver assem-
blies indicated generally at 36' to the bed side boards 16',
two of the assemblies 36' being at the extreme ends of the
side boards 16' in the manner of the embodiment of Figures 1
and 2. Coupling is achieved in the identical manner to that
of the first embodiment. In this case, as may be appre-
ciated, all of the channel members 18' mount upside down
such that they open face downwardly. The two interior
channel members 18' engage interiorly at their ends up-
standing pins or dowels 146 of beams 144. Again, a numbe~
of hollow core panels 42' are slid into position so as to be
received within slots 72' to one side or both sides of the
channel members 18' depending upon whether the channel
members 18' are at an interior position with respect to
the end boards 12'1 14' or abutting those end boards. The
side boards 16' connect to the ends of the channel members
via latches 34' and receiver assemblies 36', respectively.
The connections permit the bed to be quickly assembled
or knocked down within minutes or even seconds as appre-
ciated from viewing the exploded perspective view of ~igure
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10, to a similar degree as described in more detail with
respect to the first embodiment and accomplished in
similar fashion.
